#ifdef _WIN32
#pragma warning(disable:4786)
#endif
/*
 **	Query.h
 **
 **	Published / author: 2005-08-12 / grymse@alhem.net
 **/

//Modificada LCPT.

/*
Copyright (C) 2001-2006  Anders Hedstrom

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#ifndef _QUERY_H_SQLITE
#define _QUERY_H_SQLITE

#include <string>
#include <map>
#ifdef WIN32
typedef unsigned __int64 uint64_t;
typedef __int64 int64_t;
#else
#include <stdint.h>
#endif


#ifdef SQLITEW_NAMESPACE
namespace SQLITEW_NAMESPACE {
#endif


/** SQL Statement execute / result. */
class Query 
  {
  private:
	/** Hide the copy constructor. */
    Query(const Query& q) : m_db(q.GetDatabase()), res(NULL) {}
	/** Hide the assignment operator. */
	Query& operator=(const Query& ) { return *this; }
	/** Print current result to stdout. */
	void ViewRes();
	/** Print error to debug class. */
	void error(const std::string& );
	Database& m_db; ///< Reference to database object
	Database::OPENDB *odb; ///< Connection pool handle
	sqlite3_stmt *res; ///< Stored result
	bool row; ///< true if fetch_row succeeded
	short rowcount; ///< Current column pointer in result
	std::string m_tmpstr; ///< Used to store result in get_string() call
	std::string m_last_query; ///< Last query executed
	int cache_rc; ///< Cached result after call to get_result()
	bool cache_rc_valid; ///< Indicates cache_rc is valid
	int m_row_count; ///< 0 if get_result() returned no rows
	//
	std::map<std::string,int> m_nmap; ///< map translating column names to index
  public:
    /** Constructor accepting reference to database object. */
    Query(Database& dbin);
    /** Constructor accepting reference to database object
 	and query string to execute. */
    Query(Database& dbin,const std::string& sql);
    ~Query(void);

    /** Check if database object is connectable. */
    bool Connected();
    /** Return reference to database object. */
    Database& GetDatabase() const;
    /** Return string containing last query executed. */
    const std::string& GetLastQuery(void) const;

    /** execute() returns true if query is successful,
        does not store result. */
    bool execute(const std::string& sql);
    bool insert_blob1(const std::string &sql,const void *blobData,const size_t &numBytes);
    /** Execute query and store result. */
    sqlite3_stmt *get_result(const std::string& sql);
    /** Free stored result, must be called after get_result() before calling 
        execute()/get_result() again. */
    void free_result();
    /** Fetch next result row.
        \return false if there was no row to fetch (end of rows) */
    bool fetch_row(void);
    /** Get id of last insert. */
    sqlite_int64 insert_id();

    long num_rows(void) const;
    size_t num_columns(void) const;
    std::string field_names(void) const;
    inline int field_index(const std::string &str)
      { return (m_nmap[str] - 1); }

    /** Last error string. */
    std::string getError(void) const;
    /** Last error code. */
    int GetErrno();

    /** Execute query and return first result as a string. */
    const char *get_string(const std::string& sql);
    /** Execute query and return first result as a long integer. */
    long get_count(const std::string& sql);
    /** Execute query and return first result as a double. */
    double get_num(const std::string& sql);

    /** Check if column x in current row is null. */
    bool is_null(int x);


    /** Return column named x as a blob value. */
    const void *getblob(const std::string& x);
    /** Return column x as a blob value. */
    const void *getblob(int x);
    /** Return next column as a string value - see rowcount. */
    const void *getblob();

    /** Return column named x as a string value. */
    const char *getstr(const std::string& x);
    /** Return column x as a string value. */
    const char *getstr(int x);
    /** Return next column as a string value - see rowcount. */
    const char *getstr();

    /** Return column named x as a long integer. */
    long getval(const std::string& x);
    /** Return column x as a long integer. */
    long getval(int x);
    /** Return next column as a long integer - see rowcount. */
    long getval();

    /** Return column named x as an unsigned long integer. */
    unsigned long getuval(const std::string& x);
    /** Return column x as an unsigned long integer. */
    unsigned long getuval(int x);
    /** Return next column as an unsigned long integer. */
    unsigned long getuval();

    /** Return column named x as a 64-bit integer value. */
    int64_t getbigint(const std::string& x);
    /** Return column x as a 64-bit integer value. */
    int64_t getbigint(int x);
    /** Return next column as a 64-bit integer value. */
    int64_t getbigint();

    /** Return column named x as an unsigned 64-bit integer value. */
    uint64_t getubigint(const std::string& x);
    /** Return column x as an unsigned 64-bit integer value. */
    uint64_t getubigint(int x);
    /** Return next column as an unsigned 64-bit integer value. */
    uint64_t getubigint();

    /** Return column named x as a double. */
    double getnum(const std::string& x);
    /** Return column x as a double. */
    double getnum(int x);
    /** Return next column as a double. */
    double getnum();
  };


#ifdef SQLITEW_NAMESPACE
} // namespace SQLITEW_NAMESPACE {
#endif

#endif // _QUERY_H
